Damper-regulator.



s. HOOD.

DAMPER REGULATOR. APPLICATION FILED FEB. 10, 1906 I iNVENTOR aWJKmuhTENS col. wnsnmamn, n c.

' PATENTED APR. 16, 1907.

CYRUS S. HOOD, OF CORNING, NEW YORK.

DAMPER-REGULATOR.

Specification of Letters Patent.

Patented April 16, 1907.

Application filed February 10,1906. Serial No 300,376.

To all whom it may concern.-

Be it known that I, CYRUs S. Hoop, a citizen of the United States,residing at Corning, in the county of Steuben and State of New York,have inventedcertain new and useful Improvements in Damper Regulators,of which the following is a specification.

This invention relates to improvements in damper-regulators whichreadily at the furnace as at the damper-board located upon a floorabove; and the object of my invention is to provide a simple andeffective pulley-frame and sheaves with a balanced indicator-rod andconnections Whereby a. damper may be opened or closed and adjusted fromabove or-below and its position indicated at all times by the positionof the adjusting-rod at the indicator-board or other device on the floorabove.

I attain my object by an adjustable pulleyframe carrying double sheavesand a balanced indicatorrod arranged and operated substantially in themanner illustrated in the accompanying drawings, in which Figure 1represents a side elevation of my improved regulator and the manner ofattaching it to the floor-joists, and Fig. 2 a plan view of theattaching-block with the pulley-frame and regulator-rod shown inhorizontal section on the line of the fasteningbolt.

Like letters of reference indicate like parts in the two views.

The pulley-frame,which supports the guidesheaves and operating-rod,consists of a light metal plate bent into cylindrical form at B, withthe ends bent outward and parallel at A. Between these parallel sides orcheeks are j ournaled the sheaves C and D. The pulleyframe is supportedupon a block E, adapted to be attached to the under side of thefloorjoists or to other support. This block is provided at suitablepoints with one or more curved notches to receive the cylindricalportion B of the pulley-frame and hold it in vertical position with astrong bearing. A bolt F is passed through a horizontal slot G incylinder B and through the block E, the head of the bolt engaging theinside of the framecylinder and the threaded end of the bolt passing outthrough the other side of the block, where it is nut.

Passing vertically through the cylindrical portion of the pulley-frameis the rod H, which extends up through a hole in the floor may beoperated as l intermediate positions.

) the bottom of the rod H l I l provided with a tightening- I above andis guided at the top by a suitable bracket N, attached to an adjacentwall. At the top the rod is provided with an indicatorbutton which willbe suitably lettered where l more than one regulator is employed, the lbracket back of this button being provided with suitable marks toindicate when the damper is open or closed and also, if desired,

From a pin I, attached to this rod H, a c'hainJ passes under the sheaveC and through suitably-positioned guide-pulleys to the furnace-damper,and at a pin K projects to receive the chain L, which passes over thesheave I) and is attached to a counterbalancing-weight M, said weightbeing-so proportioned as to counterbalance the Weight of the rod H andthe pull of the damper, so that the rod will remain set in any positionto which it may be moved either by manipulating the rod from above ormanipulating the damper at the furnace.

In setting this regulator in position the block E will be fastened insuitable alinement with the wall above the floor, against which wall theindicator-bracket N is to be attached, and one or more holes will bebored through the floor in alijnement with the axis of the cylindricalportion of the pulley-frame when set against said block. The rod H willbe passed through the floor and attached to the chains J and L andconnections made with the damper. The bolt F will then be loosened andthe pulley-frame turned until the sheave C isin direct alinement withthe line of direction in which the chain J must be run to the damper,after which the tighteningnut on said bolt is screwed up and the partsare permanently in place.

There may be one or more of these regulators, and I have shown the blockE provided for the reception of twosay one to operate the front ordraft-damper of the furnace and the other to operate the check-damper.In some furnaces, however, the draft and check dampers are coupledtogether, so that when one is opened the other is closed, and where suchis the case one regulator will be suflicient.

What I claim as my invention, and desire to secure by Letters Patent, isI 1. In a damper-regulator, an adjustin rod, a pulley-frame having acylindrical portion through which the rod passes, said cylindricalportion being provided with a transverse slot, a bolt passing throughsaid slot, a

damper connection and a counterweight,

supp orti ng-block through which said b olt also passes, a nut totighten the bolt when the chains running under and over said sheaves 15frame is in position, two sheaves mounted in from the rod to the damperconnection and the frame one above the other, a damper coni to thecounterweight respectively, and means nectio'n, a chain running from therod under l for fastening said frame in line with the damthe upperpulley to said connection, a counper connection.

terbalancmg-weight, and a chain passing In testimony whereof I haveaffixed my 20 signature in presence of two witnesses.

over the under pulley and connecting said t0 lower end Of I'OCl. S 2. Ina damperregulator, a vertical adjusting-rod, a pulley-frame having acylin Witnesses:

drical portion through which the rod passes, FRANCIS C. WILLIAMS,

a pair of sheaves mounted in the frame, a l MORRIS ANSOEG.

